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Driving systems
256
and overtaking restrictions. Traffic signs
always have priority over the Traffic Sign
Assist display.
The system may be either functionally
impaired or temporarily unavailable if:
visibility is poor, e.g. due to snow, rain, fog
R
or spray
there is glare, e.g. from the sun being low in
R
the sky
there is dirt, ice or misting on the wind-
R
screen in the vicinity of the camera
traffic signs are hard to detect (dirt, ice,
R
snow)
the traffic signs are insufficiently lit at night
R
signs are ambiguous (e.g. traffic signs on
R
construction sites or in adjacent lanes)
the information in the digital street map of
R
the navigation system is incorrect or out of
date
Switching the message function on/off
If you have activated the Traffic Sign Assist
display in the on-board computer, the traffic
regulations (speed limits and overtaking
restrictions) are displayed in the instrument
cluster for five seconds respectively. The
wrong-way warning and the traffic sign dis-
play for speed limits and overtaking restric-
tions remain active even when the display has
been deactivated.
Switch on the Traffic Sign Assist message
X
function via the on-board computer
(
page 286).
Y
Instrument cluster display
Showing the assistance graphic
Call up the assistance graphics display
X
function using the on-board computer
(
page 286).
Y
Select the Traffic Sign Assist display.
X
Detected traffic signs are displayed in the
instrument cluster.
Speed limit with overtaking restriction
A maximum permitted speed of 100 km/h
(100 mph) : and an overtaking restric-
tion ; apply.
Speed limit with unknown restriction
Maximum permitted speed
:
Maximum permitted speed for vehicles
;
for which the restriction in the additional
sign is relevant
Additional sign for unknown restriction
=
A maximum permitted speed of 100 km/h
(100 mph) and a speed limit of 80 km/h
(80 mph) apply with an unknown restriction.
Speed limits in wet conditions
Maximum permitted speed
:
Additional signs for wet conditions
;
A maximum permitted speed of 80 km/h
(80 mph) applies in wet conditions and when
Traffic Sign Assist has determined that the
restriction must be observed.
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